Liquid jetting device and drive voltage correction method

Details Liquid jetting device and drive voltage correction method Liquid jetting device and drive voltage correction method

2007-10-30

2007-10-30

Nguyen, Thinh (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S019000, C347S057000

Reexamination Certificate

active

11201438

ABSTRACT:
A liquid jetting device having: a recording head including a jetting energy generating element; a drive circuit generating drive signal for the element; a liquid detection sensor detecting a jetting characteristic value of liquid jetted from a nozzle; a drive voltage adjustment unit adjusting a voltage value of the drive signal; and a controller to control the drive circuit, the sensor and the drive voltage adjustment unit, wherein the controller performs control so that the liquid is jetted, and creates a correction data from the jetting characteristic value; and the controller performs control so that the voltage value is corrected based on a value obtained by multiplying the correction data by convergence coefficient within a range from 0.50 or more to less than 1.00, and repeats correcting the voltage value until a detection result of the liquid jetted based on the drive signal after the correction becomes a target value.

REFERENCES:
patent: 5633671 (1997-05-01), Watanabe

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